Nonmendelian Genetics

Principles of inheritance that does not follow Mendelian genetics

Tags

NGSS.HS-LS3-2

Principle of inheritance that produces a third phenotype from the two parents

Which of the following is an example of incomplete dominance?

• A red and white flower producing pink offspring

• A black and white cat producing black and white kittens

• A tall and short plant producing medium height offspring

• A brown and white cow producing brown and white calves

What is the genetic phenomenon where both alleles are fully expressed in the phenotype?

• Codominance

• Incomplete dominance

• Epistasis

• Pleiotropy

In which of the following does a single gene affect multiple phenotypic traits?

• Pleiotropy

• Epistasis

• Polygenic inheritance

• Codominance

Which of the following is an example of codominance?

• AB blood type in humans

• Pink flowers from red and white parents

• Height in pea plants

• Skin color in humans

What is the term for a gene that masks the effect of another gene at a different locus?

• Epistatic gene

• Dominant gene

• Recessive gene

• Pleiotropic gene

Which of the following describes polygenic inheritance?

• Multiple genes influencing a single trait

• A single gene influencing multiple traits

• One gene masking the effect of another

• Both alleles being expressed equally

What is the expected phenotypic ratio in a dihybrid cross showing epistasis?

• 9:3:4

• 9:3:3:1

• 1:2:1

• 3:1

Which of the following is an example of a trait influenced by polygenic inheritance?

• Human skin color

• Flower color in snapdragons

• ABO blood group

• Sickle cell anemia